216835967 has 2 divisors, whose sum is σ = 216835968. Its totient is φ = 216835966.

The previous prime is 216835963. The next prime is 216836027. The reversal of 216835967 is 769538612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216835967 - 2² = 216835963 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216835963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108417983 + 108417984.

It is an arithmetic number, because the mean of its divisors is an integer number (108417984).

Almost surely, 2^216835967 is an apocalyptic number.

216835967 is a deficient number, since it is larger than the sum of its proper divisors (1).

216835967 is an equidigital number, since it uses as much as digits as its factorization.

216835967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 47.

The square root of 216835967 is about 14725.3511672897. The cubic root of 216835967 is about 600.7730470878.

The spelling of 216835967 in words is "two hundred sixteen million, eight hundred thirty-five thousand, nine hundred sixty-seven".